不锈钢板坯的高温力学性能及连铸二次冷却工艺中的应用  

High Temperature Properties of Slab of Stainless Steels and Application in Concasting Secondary Cooling Process

作　　者：谢长川 韩丽娜 胡波 崔立新[2] 艾健[3] 

机构地区：[1]中冶连铸技术工程股份有限公司,武汉430073 [2]北京科技大学冶金与生态工程学院,北京100083 [3]泰山钢铁公司不锈钢厂,莱芜271100

出　　处：《特殊钢》2014年第2期68-70,共3页Special Steel

摘　　要：泰山不锈钢厂采用60t电弧炉-GOR底吹转炉精炼-160 mm×1 600 mm板坯连铸的工艺流程冶炼不锈钢.通过Gleeble-1500D热模拟试验机试验研究了奥氏体不锈钢201 （6.54Mn-16.71Cr-3.62Ni）和J4（8.93Mn-14.84Cr-1.08Ni-1.25Cu）,铁索体不锈钢430（16.29Cr）和马氏体不锈钢410S（13.5Cr）连铸板坯的高温力学性能.结果表明,各不锈钢的第Ⅲ脆性温度区分别为201钢-665 ～990℃,J4钢-600～950℃,430钢-600 ～700℃和410S钢-720 ～930℃;201和J4钢采用较弱二次冷却,矫直温度分别控制为≥1010℃和≥995℃,430钢用较强二次冷却,矫直温度900～950℃;410S钢用较弱二次冷却,矫直温度≥980℃.The production flow sheet for stainless steels steelmaking at Taishan Steel Works is 60 t EAF-GOR bottom blowing converter refining-160 mm x 1 600 mm slab casting process. With using Gleeble-15OOD thermal simulation testing machine, the high temperature properties of casting slab of austenite stainless steel 201 （ 6. 54Mn-16. 71Cr-3.62Ni） and steel J4 （8.93Mn-14. 84Cr-1.08Ni-1.25Cu）, ferrite stainless steel 430 （16. 29Cr） and martensite stainless steel 410S （13.5Cr） have been tested and studied. Results show that the m brittle temperature region of each stainless steel is re- spectively steel 201- 665 ~ 990 ℃, steel J4- 600 ~ 950 ℃, steel 430- 600 -- 700 ℃ and steel 410S- 720 - 930 ℃ ; It is a- vailable for steel 201 and J4 to use weaker secondary cooling and to straighten respectively at ≥1 010 ℃ and I〉995 ℃, for steel 430 to use stronger secondary cooling and to straighten at 900 -950 ℃, and for steel 410S to use weaker secondary cooling and to straighten at 〉1980 ℃. Material Index Austenite, Ferrite, Martensite, Stainless Steel, Slab, High Temperature Properties, Coneasting, Secondary Cooling

关 键 词：奥氏体 铁素体 马氏体 不锈钢 板坯 高温性能 连铸 二次冷却 

分 类 号：TF777[冶金工程—钢铁冶金]